CN106104089A - Power transmission - Google Patents
Power transmission Download PDFInfo
- Publication number
- CN106104089A CN106104089A CN201580013853.1A CN201580013853A CN106104089A CN 106104089 A CN106104089 A CN 106104089A CN 201580013853 A CN201580013853 A CN 201580013853A CN 106104089 A CN106104089 A CN 106104089A
- Authority
- CN
- China
- Prior art keywords
- working oil
- differential
- gear
- ring gear
- opening portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0482—Gearings with gears having orbital motion
- F16H57/0483—Axle or inter-axle differentials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
- F16H57/0452—Oil pans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0457—Splash lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/006—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising eight forward speeds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2046—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with six engaging means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2066—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using one freewheel mechanism
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2079—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches
- F16H2200/2082—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches one freewheel mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
- F16H3/663—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another with conveying rotary motion between axially spaced orbital gears, e.g. RAVIGNEAUX
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
- F16H37/0813—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft
Abstract
The present invention provides a kind of power transmission.Differential ring gear (45) is helical gear, it is configured to: rolls the working oil in differential room (60) to working oil locker room (65) when rotating to main direction of rotation and tiltedly stirs, in the rim gear wheel covering part (73) of storage dish (70) dividing differential room (60) and working oil locker room (65), along being used for discharging the 1st and the 2nd opening portion (101) of the working oil that differential ring gear (45) stirs, (102) upper side edge edge (101a), (102a) it is formed the 1st and the 2nd guide portion (110), (120), 1st and the 2nd guide portion (110), (120) lower surface (110d), (120d) formed in the way of being more close to working oil locker room (65) side and tilting more upward.
Description
Technical field
The present invention relates to a kind of power transmission, it includes divided parts, and this divided parts will divide in described housing
For for configuring the differential room of differential ring gear and differential gear and for storing the working oil locker room of working oil.
Background technology
This power transmission known in the state of the art has: storage dish (resevoir plate), and receipts dress is become by it
It is divided into the differential room for configuring above-mentioned differential gear and use in the housing parts of speed mechanism and differential gear (differential gear)
Locker room's (for example, referring to patent document 1) in storage oil (working oil).The storage dish of this power transmission is configured to,
Covering differential gear in housing parts, and it is close to the inner peripheral surface of convex tendon parts (rib member), wherein, described convex rib part
The outer surface that part starts the rim gear wheel along differential gear (differential ring gear) from described housing parts is extended.According to
This, be prevented from working oil and be trapped in differential indoor, especially around the rim gear wheel of differential gear, prevent the rotation of rim gear wheel from hindering
The increase of power.
Prior art literature
Patent document
Patent document 1: International Patent Publication publication the 2011/121861st
Content of the invention
In the power transmission of described prior art, the work of the differential indoor being stirred due to the rotation of rim gear wheel
The notch that work oil is formed on convex tendon parts is to the outdoor discharge of differential, and encounters the wall of the storage dish inserting this notch
Parts, and it is guided to locker room side.But, it is discharged to one of the outdoor working oil of differential from the notch of convex tendon parts
Point, may collide and flow to lower section with wall components, and it is indoor again to flow to differential from notch.Therefore, in described existing skill
In the power transmission of art, working oil possibly cannot be prevented well to be trapped in the indoor situation of differential.
Therefore, present invention is primarily targeted at, by dividing for configuring differential ring gear and differential gear
Differential room and for storing the divided parts of working oil locker room of working oil, is better protected from working oil and is trapped in differential room
In.
The power transmission of the present invention has: differential ring gear, its power being passed over by speed changer with acceptance
Driver pinion engagement；Differential gear, it is connected with described differential ring gear；Housing, its receipts fill described differential mechanism ring tooth
Wheel and described differential gear；Divided parts, it will be divided in described housing for configuring described differential ring gear and institute
State the differential room of differential gear and for storing the working oil locker room of working oil, it is characterised in that there is rim gear wheel covering part,
This rim gear wheel covering part covers a part for the outer surface of described differential ring gear, and has: opening portion, and it is for will be by
It is outdoor that the working oil that described differential ring gear stirs is discharged to described differential；Guide portion, it is along the upside of described opening portion
Edge extends, and prominent to the radial outside of described differential ring gear from the outer surface of described rim gear wheel covering part, institute
Stating differential ring gear is helical gear, and it is configured to, when rotating to main direction of rotation, by working oil indoor for described differential to
Described working oil locker room rolls and tiltedly stirs, and the lower surface of described guide portion is formed as, more to described working oil locker room side
Near tilting more upward.
In the power transmission of the present invention, when differential ring gear rotates to main direction of rotation, due to differential mechanism
The indoor working oil of differential that rotates of rim gear wheel is tiltedly stirred towards the inclination of working oil locker room, and is covered by rim gear wheel
The opening portion in portion is to the outdoor discharge of differential.Then, a part for the working oil discharged by opening portion, upper with along this opening portion
The lower surface collision of lateral edge portion extension and the radially projecting guide portion from outer surface to differential ring gear, and drawn
Guide working oil locker room side.Now, owing to the lower surface of guide portion is with more close more upward to working oil locker room side
The mode tilting, i.e. with to the rotation due to differential ring gear and the identical side in the direction of dispersing of working oil that stirred
Being formed to the mode tilting, the working oil that therefore, it can make to collide the lower surface of this guide portion does not flow to underface, and makes it
Spatter to working oil locker room side.Itself as a result, it is possible to be effectively prevented the lower surface colliding guide portion working oil flow to just under
Side, flows into differential indoor again from opening portion.Therefore, in the power transmission of the present invention, can be used for configuring by division
The differential room of differential ring gear and differential gear and for storing the divided parts of the working oil locker room of working oil, comes more
Prevent well the indoor delay working oil of differential.
Brief description
Fig. 1 is the general configuration figure of the power transmission of an embodiment of the invention.
Fig. 2 is each shift gear representing the automatic transmission included in the power transmission of Fig. 1 and clutch and brake
Operating state between the action chart of relation.
Fig. 3 is the front view representing the storage dish included in the power transmission of Fig. 1.
Fig. 4 is the side view representing storage dish.
Fig. 5 is the side view representing storage dish.
Fig. 6 is the stereogram representing storage dish.
Fig. 7 is the enlarged drawing of the major part representing storage dish.
Fig. 8 is the enlarged drawing of the major part representing storage dish.
Detailed description of the invention
Then, referring to the drawings embodiments of the present invention are illustrated.
Fig. 1 is the general configuration figure of the power transmission 20 of the present invention.Scheme together shown power transmission 20 and take
The bent axle of the not shown engine being loaded in front-wheel drive vehicle connects, and can be by the driving to the left and right of the power from engine
Wheel (front-wheel) DW transmission.As it can be seen, power transmission 20 includes: gear box casing (transmission case) 22, its
Including converter cover 221 and the Driving axle housing (transaxle case) 222 being connected with this converter cover 221；Fluid
Transmission device (apparatus for starting) 23, it is installed in converter cover 221；Oil pump 24；Automatic transmission 25, it is housed in
In Driving axle housing 222；Gear mechanism (gear train) 40；With differential gear (box of tricks) 50 etc..
Fluid transmission means 23 is configured to fluid torque-converter, have the input side that the bent axle with engine is connected pump impeller 23p,
The turbine 23t of the outlet side being connected with the power shaft 26 of automatic transmission 25, configuration come in the inner side of pump impeller 23p and turbine 23t
To working oil from turbine 23t to the flowing of pump impeller 23p carry out the guide wheel 23s of rectification, the direction of rotation by guide wheel 23s is limited in one
The one-way clutch 23o in individual direction, lock-up clutch 23c etc..But, fluid transmission means 23 is also configured to not have and leads
The fluid coupling of wheel 23s.
Oil pump 24 is configured to gear pump, has: pump assembly, and it is made up of the pump housing and pump cover；External tooth gear, it passes through wheel hub
(hub) it is connected to the pump impeller 23p of fluid transmission means 23.Oil pump 24 is by the power drive from engine, by not shown mistake
The working oil (ATF) being trapped in gear box casing (transmission case) 22 drawn by filter, and its force feed is extremely not shown
Hydraulic control device.
Automatic transmission 25 is 8 grades of speed changing type speed changers, as it is shown in figure 1, include the 1st planetary gear machine of double-pinion type
2nd planetary gears of structure the 30th, Ravigneaux (ravigneaux) formula the 35th, the power for changing from input side to outlet side passes
Pass 4 clutches C1, C2, C3 and C4,2 brake B1 and B2 and the one-way clutch (one-way clutch) in path
F1。
1st planetary gears 30 has: central gear (sun gear) 31, which is external tooth gear；Gear ring 32, itself and this
Central gear 31 concentric circles configures, and is internal-gear；With planet carrier (planetary carrier) 34, it can keep many
Individual rotation and revolution freely the group of 2 little gear 33a, 33b, the group of these 2 little gear 33a, 33b is 2 and engages each other
Little gear, and wherein a side engages with central gear 31, and the opposing party engages with gear ring 32.As it can be seen, the 1st planetary gear machine
The central gear 31 of structure 30 is fixed on gear box casing 22, and the planet carrier 34 of the 1st planetary gears 30 is connected to power shaft 26,
It can rotate integrally with this power shaft 26.In addition, the 1st planetary gears 30 is the structure of so-called reduction gearing, make biography
It is handed to the dynamic retarding of planet carrier 34 for input element (elements), and export from the gear ring 32 for output element.
2nd planetary gears 35 has: the 1st central gear 36a and the 2nd central gear 36b, which is external tooth gear；Tooth
Circle 37, itself and the 1st central gear 36a and the configuration of the 2nd central gear 36b concentric circles, and be internal-gear；Multiple short and small gears
38a, it engages with the 1st central gear 36a；Multiple length little gear 38b, itself and the 2nd central gear 36b and multiple short and small gear
38a engages, and engages with gear ring 37；With planet carrier 39, it keeps multiple short and small gear 38a and multiple length little gear 38b freely
Rotation (rotating freely) and freely revolving round the sun.The gear ring 37 of the 2nd planetary gears 35 is as the output block of automatic transmission 25
Function, is transferred to the power of gear ring 37 via gear mechanism the 40th, differential gear 50 and driving shaft 28 to the left from power shaft 26
Right driving wheel transmission.In addition, planet carrier 39 is supported by gear box casing 22 via one-way clutch F1, this planet carrier 39
Direction of rotation is limited in a direction by one-way clutch F1.
Clutch C1 is multi-disc friction type hydraulic clutch (friction snap-fit element), has hydraulic servomechanism, this hydraulic pressure
Servo control mechanism by piston, multiple friction plate and by friction plate, provide the grease chamber etc. of working oil to constitute, this clutch C1 can be by the
1st central gear 36a of gear ring the 32 and the 2nd planetary gears 35 of 1 planetary gears 30 couples together, and can solve
Connection except both.Clutch C2 is multi-disc friction type hydraulic clutch, has hydraulic servomechanism, this hydraulic servomechanism by
Piston, multiple friction plate and by friction plate, provide the grease chamber etc. of working oil to constitute, this clutch C2 can be by power shaft 26 and the
The planet carrier 39 of 2 planetary gears 35 couples together, and can release both connections.Clutch C3 is multi-disc friction type
Hydraulic clutch, has hydraulic servomechanism, and this hydraulic servomechanism is by piston, multiple friction plate with by friction plate, offer work
The grease chamber etc. making oil is constituted, and this clutch C3 can be by gear ring the 32 and the 2nd planetary gears 35 of the 1st planetary gears 30
The 2nd central gear 36b couple together, and both connections can be released.Clutch C4 is multi-disc friction type hydraulic clutch
Device, has hydraulic servomechanism, and this hydraulic servomechanism is by piston, multiple friction plate with by friction plate, the oil providing working oil
Rooms etc. are constituted, and this clutch C4 can be by the 2nd of planet carrier the 34 and the 2nd planetary gears 35 of the 1st planetary gears 30 the
Central gear 36b couples together, and can release both connections.
Brake B1 is multi-disc friction type liquid braking device, has hydraulic servomechanism, and this hydraulic servomechanism is by multiple
Friction plate and the grease chamber etc. by friction plate, offer working oil are constituted, and it can be by the 2nd sun tooth of the 2nd planetary gears 35
Wheel 36b is fixed on gear box casing 22 in not revolvable mode, and can release the 2nd central gear 36b at gearbox
Fixing on housing 22.Brake B2 is multi-disc friction type liquid braking device, has hydraulic servomechanism, this hydraulic servomechanism
Grease chamber etc. by multiple friction plates with by friction plate, offer working oil is constituted, and it can be by the planet of the 2nd planetary gears 35
Frame 39 is fixed on gear box casing 22 in not revolvable mode, and can release planet carrier 39 on gear box casing 22
Fixing.
In addition, one-way clutch F1 for example includes being connected to the inner ring of the planet carrier 39 of the 2nd planetary gears 35, outer
Circle, multiple voussoir, multiple spring (leaf spring), retainer etc., when rotating to a direction relative to inner ring in outer ring, pass through voussoir
Transmission moment of torsion, and when rotating to another direction relative to inner ring in outer ring, make both rotate against.But, one-way clutch
Device F1 also can have beyond Wedge-type, such as the structure of roll-type.
Giving of the working oil that these clutches C1～C4 and brake B1, B2 not shown hydraulic control device of acceptance are carried out
Row carries out action.Fig. 2 is each shift gear representing automatic transmission 25 and clutch C1～C4, brake B1, B2, Yi Jidan
The action schedule of the relation between the operating state of clutch F1.It is in Fig. 2 by making clutch C1～C4, brake B1, B2
The state shown in action schedule, automatic transmission 25 can provide the shift gear that advance 1～8 keeps off and retrogressing 1 gear, the speed changes of 2 gears
Gear.In addition, clutch C1～C4, in brake B1, B2 at least one can for dog clutch (dog clutch) this
The engagement type snap-fit element of sample.
Gear mechanism 40 has: middle driving gear (counter drive gear) 41, itself and automatic transmission 25
The gear ring 37 of the 2nd planetary gears 35 connects；Middle driven gear (counter driven gear) 43, its be fixed on
The power shaft 26 of automatic transmission 25 extends in parallel on the jackshaft 42 of setting, and engages with middle driving gear 41；Actively
Little gear (final stage driver pinion) 44, its formed (or fixing) in jackshaft 42, and, dynamic from automatic transmission 25
Power passes to this driver pinion 44 by middle driving gear the 41st, middle driven gear 43 and jackshaft 42；Differential mechanism ring
Gear (final stage driven gear) 45, it engages with driver pinion 44.
As it is shown in figure 1, differential gear 50 has: a pair (2) little gear 51；A pair (2) side gear (side
Gear) 52, it is individually fixed in driving shaft 28, and engages with little a pair gear 51 in the way of at a right angle；Pinion shaft 53,
It supports little a pair gear 51；Differential casing 54, its receipts fill little a pair gear 51 and a pair side gear 52, and connect
(fixing) is in differential ring gear 45.In the present embodiment, each little gear 51 and each side gear 52 are straight bevel gear.Difference
Speed device housing 54, by not shown bearing, is supported in the way of coaxial with driving shaft 28 by gear box casing 22, and can be certainly
By rotating.
Then, with reference to Fig. 3 to Fig. 5, the major part in power transmission 20 is illustrated.These accompanying drawings are to represent
The figure of storage dish (divided parts) 70, this storage dish 70 is divided into use in gear box casing (transmission case) 22
In configuration differential ring gear 45 and the differential room 60 (with reference to Fig. 4 and Fig. 5) of differential gear 50 be used for storing working oil
Working oil locker room 65 (with reference to Fig. 3 to Fig. 5) storage dish.In addition, in the following description, "up" and "down" is illustrated respectively in
The "up" and "down" in vertical direction in the state of power transmission 20 is equipped on vehicle.
As shown in Figures 3 to 5, storage dish 70 includes: differential covering part (differential covering portion)
71, it is axially extending along differential ring gear 45, from a part for outer side covers differential gear 50；Flange part 72, it is from difference
Speed covering part 71 starts to extend to the radial outside of differential ring gear 45；Rim gear wheel covering part 73, it is formed at flange part 72
Peripheral edge portion 72a.The storage dish 70 being made up of above-mentioned differential covering part the 71st, flange part 72 and rim gear wheel covering part 73, by
Resin is one-body molded.But, storage dish 70 also can be formed by the material beyond resin.In addition, rim gear wheel covering part 73 also may be used
With with storage dish 70 split, for example can extend out from gear box casing 22.
As shown in FIG. 4 and 5, differential covering part 71 is with the outer surface along differential gear 50 (differential casing 54)
The mode that extends of a part formed, main surround differential gear 50, remove install differential ring gear 45 part and with
Part behind the end of this differential ring gear 45 opposite side.On the outer surface of the upside of differential covering part 71, arrange
Having fixed part 711, it is fixed on converter cover 221.As it is shown on figure 3, in the present embodiment, converter cover 221 is by many
Individual bolt is connected to the end surface of Driving axle housing 222, jointly marks off work with Driving axle housing 222 and storage dish 70
Oil locker room 65.
As shown in FIG. 4 and 5, flange part 72 is from differential ring gear 45 side (left side of Fig. 4) of differential covering part 71
One end start extend, in the state of storage dish 70 is configured in gear box casing 22, the work with differential ring gear 45
The side surface 45a of Zuo You locker room 65 side is in opposite directions.In addition, as it is shown on figure 3, be formed with notch 72s on flange part 72, so that
This flange part 72 is not interferenceed with driver pinion 44.Accordingly, flange part 72 is arc-shaped along the periphery of differential covering part 71
(substantially C-shaped) extends.In addition, be formed on the peripheral edge portion 72a of flange part 72 be fixed on converter cover 221 and
1-the 3rd fixed part of Driving axle housing 222 the 721st, the 722nd, 723.
Rim gear wheel covering part 73 from the top of the periphery edge 72a of flange part 72 to differential ring gear 45 axial with
The contrary side of differential covering part 71 extends.This rim gear wheel covering part 73 has the outer surface along differential ring gear 45
Circular shape, in the state of storage dish 70 is configured in gear box casing 22, covers from above differential ring gear 45
About substantially the 4 of outer surface/1.Accordingly, can by rim gear wheel covering part 73 be effectively prevented from storage dish 70 upper
The working oil dispersing in Driving axle housing 222 in side flows in differential room 60.
In the present embodiment, as it is shown on figure 3, Driving axle housing 222 has: inner peripheral surface 222n, it has along difference
The circular shape of the outer surface of speed device rim gear wheel 45；Convex rib part 222r, it is formed as having and has with this inner peripheral surface 222n
The inner peripheral surface of roughly the same radius of curvature, and surround a part for the outer surface of differential ring gear 45.Storage dish
70 are configured in gear box casing 22, and a part of the peripheral edge portion 72a of its flange part 72 is along in Driving axle housing 222
The inner peripheral surface of perimeter surface 222n and convex rib part 222r extends, and storage dish 70 is being formed at the fixed part 711 of differential covering part 71
It with 1-the 3rd fixed part on the peripheral edge portion 72a being formed at flange part 72 the 721st, the 722nd, at 723, is fixed in torque-converters
Housing 221 and Driving axle housing 222.
Then, inner peripheral surface 222n between the part of peripheral edge portion 72a of flange part 72 and Driving axle housing 222
And it between the inner peripheral surface of convex rib part 222r, is provided with not shown seal member.Hereby it is possible to by the differential of storage dish 70
Covering part 71 and flange part 72 will be divided into differential room 60 and working oil locker room 65 in gear box casing 22, and can have
The working oil storing in preventing to effect working oil locker room 65, via peripheral edge portion 72a and the gear box casing of flange part 72
Flow in differential room 60 between inner peripheral surface 222n of 22 and the inner peripheral surface of convex rib part 222r.
As shown in Figure 3 and 4, the storage dish 70 of said structure also has filling part 74, and it is in working oil locker room 65
Side is filled between differential covering part 71 and flange part 72 and gear box casing 22 (converter cover 221) sky marking off
Between.Filling part 74 is configured to, when power transmission 20 is equipped on vehicle, after being positioned at vehicle compared with differential covering part 71
Portion side (left side of Fig. 3), filling part 74 is at upper opening, and it has: bottom 741, and it starts to change from differential covering part 71
The inner peripheral surface of speed tank shell 22 (converter cover 221) extends；Wall portion 742, its with flange part 72 in opposite directions, and with along change
The mode that the inner peripheral surface of speed tank shell 22 (converter cover 221) extends extends upward from the circumference of bottom 741.
By forming such filling part 74 on storage dish 70, it is possible to reduce (filling up) differential covering part 71 and flange
The inflow space of working oil between portion 72 and gear box casing 22, the remaining space that i.e. working oil can flow into.Itself as a result, it is possible to
Preventing when carrying the vehicle start of power transmission 20, the working oil in working oil locker room 65 is to vehicle rear sidesway
Dynamic, the suction port of the not shown filter configuring in can also being better protected from this working oil locker room 65 exposes pasta and makes
There is suction in oil pump 24.
Then, with reference to shown in Fig. 6 to Fig. 8, such as to storage dish 70 will flow to after lubrication rim gear wheel 45 below
Working oil etc. flow into the structure that the working oil of differential room 60 discharges to working oil locker room 65 and illustrate.
As shown in Figure 6 to 8, the rim gear wheel covering part 73 of storage dish 70 and flange part 72, have along differential mechanism ring
The 1st opening portion 102, opening portion the 101 and the 2nd that gear 45 circumference is formed.1st opening portion 102, opening portion the 101 and the 2nd across
Rim gear wheel covering part 73 and flange part 72 are formed, from rim gear wheel covering part 73 differential ring gear 45 axially substantially in
Centre portion starts, until flange part 72 is in differential ring gear 45 substantially central portion radially.
As shown in Figure 8, the upper side edge edge extending on flange part 72 of the 1st opening portion 102, opening portion the 101 and the 2nd
101a, 102a are formed as, more close to the inner circumferential side of flange part 72, i.e. the axle center 45o (reference closer to differential ring gear 45
Fig. 3), tilt downwards.In addition, as shown in Figure 8, the 1st opening portion 102, opening portion the 101 and the 2nd at flange part 72
Edge part 101b, 102b of inner circumferential side, is formed at (circle at the bottom of tooth: the two point with reference to Fig. 8 is drawn at the bottom of the tooth than differential ring gear 45
Line) closer to the inner circumferential side of this flange part 72, i.e. closer to the position of axle center 45o of differential ring gear 45.
And, on the surface of the outer surface of rim gear wheel covering part 73 and working oil locker room 65 side of flange part 72
On, it is respectively formed with the 1st guide portion of the upper side edge edge 101a extension along the 1st opening portion 101 the 110th, along the 2nd opening portion 102
Upper side edge edge 102a extend the 2nd guide portion 120, and the 2nd opening portion 102 lower section extend the 3rd guide portion 130.
Additionally, on the surface of the inner peripheral surface of rim gear wheel covering part 73 and differential room 60 side of flange part 72, be respectively formed with edge
Interior side guide 140 that the upper side edge edge 101a of the 1st opening portion 101 extends and the upper side edge edge along the 2nd opening portion 102
The interior side guide 150 (with reference to Fig. 5) that 102a extends.
As shown in Figures 7 and 8, the 1st guide portion 110 has: radially protruding part 111, and it is along at rim gear wheel covering part 73
The upper side edge edge 101a of the 1st opening portion 101 extend, and from the outer surface of this rim gear wheel covering part 73 to differential mechanism ring
Gear 45 radially projecting；Axial projection 112, it starts at flange part 72 from one end of this radially protruding part 111
The upper side edge edge 101a of the 1st opening portion 101 extends, and from the surface of working oil locker room 65 side of this flange part 72 to difference
Speed device rim gear wheel 45 axially projecting.
As shown in Figure 8, the axial projection 112 of the 1st guide portion 110 is along the upper side edge edge of the 1st opening portion 101
101a, extends to the edge with the 1st opening portion 101 in the way of the inner circumferential side being more close to flange part 72 tilts downwards
The position of (dotted line of reference Fig. 8) roughly the same degree on the extended line of portion 101b.Further, axial projection 112 extends always
To the outer surface of differential covering part 71, more close to the inner circumferential side of flange part 72 than the 1st opening portion 101, more ratio is along this
The part that the upper side edge edge 101a of the 1st opening portion 101 extends more tilts downwards sharp.That is, the axle of the 1st guide portion 110
To protuberance 112, formed to the inner circumferential side (justified at the bottom of tooth) at the bottom of the tooth than differential ring gear 45 closer to this flange part 72, i.e. more
Position close to the axle center 45o (with reference to Fig. 3) of differential ring gear 45.
Smoothly extend in addition, the 1st guide portion 110 also has in radially protruding part 111 and axial projection 112 both sides
Lower surface 110d and upper surface 110u.As it is shown in fig. 7, the lower surface 110d of the 1st guide portion 110, with more to working oil storage
Room 65 side (right side in Fig. 7) is formed near the mode tilting more upward.On the other hand, as it is shown in fig. 7, the 1st guide portion
The upper surface 110u of 110, by more to working oil locker room 65 side (right side in Fig. 7) in the way of tilt downwards shape
Become.
As shown in Figure 7 and Figure 8, the 2nd guide portion 120 has: radially protruding part 121, and it is along rim gear wheel covering part 73
The upper side edge edge 102a of the 2nd opening portion 102 at place extends, and starts to difference from the outer surface of this rim gear wheel covering part 73
Speed device rim gear wheel 45 radially projecting；Axial projection 122, it starts along flange part from one end of this radially protruding part 121
The upper side edge edge 102a of the 2nd opening portion 102 at 72 extends, and from the table of working oil locker room 65 side of this flange part 72
Axially projecting towards differential ring gear 45.
As shown in Figure 8, the axial projection 122 of the 2nd guide portion 120 is along the upper side edge edge of the 2nd opening portion 102
102a, by more to the inner circumferential side of flange part 72 is close tilt downwards in the way of, extend to and the 2nd opening portion 102
The position of (dotted line of reference Fig. 8) roughly the same degree on the extended line of edge part 102b.That is, axially dashing forward of the 2nd guide portion 120
Go out portion 122, be formed at (circle at the bottom of tooth) at the bottom of the tooth than differential ring gear 45 closer to the inner circumferential side of this flange 72, i.e. closer to difference
The position of the axle center 45o (with reference to Fig. 3) of speed device rim gear wheel 45.
In addition, the 2nd guide portion 120 also has and smoothly extends in radially protruding part 121 and axial projection 122 both sides
Lower surface 120d and upper surface 120u.As it is shown in fig. 7, the lower surface 110d of the 1st guide portion 110 is formed as, more to working oil
Locker room 65 side (right side in Fig. 7) is close to be tilted more upward, the lower surface 110d of its inclination angle and the 1st guide portion 110
Roughly the same.On the other hand, as it is shown in fig. 7, the upper surface 110u of the 1st guide portion 110 is formed as, more to working oil locker room 65
Side (right side in Fig. 7) is close to be tilted downwards, and its inclination angle is roughly the same with the upper surface 110u of the 1st guide portion 110.
As shown in Figure 7 and Figure 8, the 3rd guide portion 130 has: radially protruding part 131, and they are at rim gear wheel covering part 73s
The lower section of the 2nd opening portion 102 extend along the lower side edge 73a of this rim gear wheel covering part 73, and cover from this rim gear wheel
It is radially projecting that the outer surface of cap 73 starts to differential ring gear 45；Axial projection 132, it is from this radially protruding part
One end of 131 starts the lower section of the 2nd opening portion 102 at flange part 72s, with the downside approximately along the 2nd opening portion 102
The angle of edge part extends, and from the surface of working oil locker room 65 side of this flange part 72 to the axle of differential ring gear 45
To prominent.
As shown in Figure 8, the axial projection 132 of the 3rd guide portion 130 is in the lower section of the 2nd opening portion 102, extends to and the 2nd
The position of (dotted line of reference Fig. 8) roughly the same degree on the extended line of the edge part 102b of opening portion 102.In addition, such as Fig. 7 institute
Showing, the upper surface 130u at the radially protruding part 131 of the 3rd guide portion 130 is formed as, more to working oil locker room 65 side (Fig. 7's
Right side) near tilting downwards.But, the lower surface 110d and upper surface 110u of the 1st guide portion 110, the 2nd guide portion
The lower surface 120d of 120 and the inclination angle of the upper surface 130u of upper surface 120u and the 3rd guide portion 130, do not implemented by this
Mode limits.
In addition, in the present embodiment, as shown in Figure 6 to 8, the wall portion 742 of filling part 74 has receiving portion 742a, its
Formed in the way of covering the lower section of the 1st opening portion 101 of flange part 72.Further, the bottom 741 of filling part 74 is arranged
Having: through hole 741o, the working oil flowing in filling part 74 is discharged by it to working oil locker room 65；Switching mechanism 75, it allows
Discharge working oil by this through hole 741o in filling part 74, and due to the working oil in working oil locker room 65 flowing and
Close through hole 741o.Switching mechanism 75 has: shield 751, and it can abut with the surface of bottom 741, to close through hole
741o；Compression plate 752, it extends out from this shield 751, is installed on bottom 741 in a rotatable manner.
Accordingly, the situation etc. on flat road, working oil locker room are travelled at the vehicle carrying power transmission 20
Working oil in 65 is difficult in the case of vehicle rear side shifting, and switching mechanism 75 is due to shield 751 and compression plate 752
Deadweight, leaves bottom 741, and opens through hole 741o.Its result, when vehicle travels on flat road, can be by
Working oil in filling part 74 is discharged to working oil locker room 65 by through hole 741o.On the other hand, power transmission dress is being carried
Put the working oil in the vehicle start Shi Deng working oil locker room 65 of 20 easily in the case of vehicle rear side shifting, mainly by
The active force of the working oil suffered by compression plate 752, makes switching mechanism 75 rotate to the direction close to bottom 741, shield 751
Bottom abutting 741 and close through hole 741o.Its result, when vehicle start when, be possible to prevent working oil locker room 65
Interior working oil is flowed in filling part 74 by through hole 741o.
When carrying the vehicle of power transmission 20 of described structure traveling, due to the rotation quilt of differential ring gear 45
Working oil in the differential room 60 stirring, by described 1st opening portion 102, opening portion the 101 and the 2nd being formed on storage dish 70
Discharge outside differential room 60.Here, in the present embodiment, as it is shown in fig. 7, differential ring gear 45 is configured to helical gear, and
And it is configured to, to main direction of rotation, i.e. carry the direction of rotation (ginseng during vehicle advance traveling of power transmission 20
Dotted arrow according to Fig. 3) rotate when, as shown in the solid arrow of Fig. 7, by the working oil in differential room 60 to working oil locker room
65 sides (right side in Fig. 7) stir obliquely.That is, as it is shown in fig. 7, the profile of tooth of differential ring gear 45 becomes, from the 1st opening portion
101 and the 2nd opening portion 102 is observed to the radial direction of this differential ring gear 45, more close more to working oil locker room 65 side
Tilt downwards.Accordingly, can be by the rotation due to differential ring gear 45 to working oil locker room 65 side, i.e. flange part 72
Working oil in the differential room 60 that side stirs with being inclined by, via the being formed across rim gear wheel covering part 73 and flange part 72
1 opening portion 102, opening portion the 101 and the 2nd, well outside differential room 60, particularly working oil locker room 65 side is (in Fig. 7
Right side) discharge.
Rolled towards working oil locker room 65 tiltedly stirred due to the rotation of differential ring gear 45, and respectively from
A part for the working oil that 1 opening portion 102, opening portion the 101 and the 2nd is discharged, collides respectively along the 1st opening portion 101
The lower surface 110d of the 1st guide portion 110 that upper side edge edge 101a extends, along the upper side edge edge 102a of the 2nd opening portion 102
The lower surface 120d of the 2nd guide portion 120 extending.As described above, the lower surface 110d of the 1st guide portion 110 and the 2nd guide portion
The lower surface 120d of 120 is formed as, and more tilts more upward to working oil locker room 65 side is close, i.e. to due to differential
The rotation of device rim gear wheel 45 and the identical direction in the direction of dispersing of working oil that stirred tilt.
Accordingly, for example with the lower surface 110d of the 1st the guide portion 110 and lower surface 120d of the 2nd guide portion 120 along differential
The axially horizontal-extending situation of device rim gear wheel 45 compares, and can reduce the working oil with this lower surface 110d, 120d collision
Component in vertical direction for the reaction force being born, and its horizontal direction in working oil locker room 65 side can be increased
On component.Its result, as shown in the solid arrow on Fig. 7, can make to be inclined due to the rotation of differential ring gear 45
Immediately below tiltedly stirring and not flowing to the working oil of this lower surface 110d, 120d collision respectively, and it is stored to working oil
Room 65 (right side in Fig. 7) side and lower section guide (spatter to).I.e., it is possible to be effectively prevented due to the rotation of differential ring gear 45
And a part for the working oil stirring with being inclined by and being discharged by the 1st opening portion 102, opening portion the 101 and the 2nd, collide speed change
Tank shell 22 and spatter to the 1st opening portion the 101 and the 2nd opening portion 102 side, and pass through the 1st opening portion, opening portion the 101 and the 2nd
102 again flow in differential room 60, or prevent from colliding lower surface 110d and the 2nd guide portion 120 of the 1st guide portion 110
The working oil of lower surface 120d flow to immediately below, and the 1st opening portion 102, opening portion the 101 and the 2nd is again flowed into differential
In room 60.
In addition, the axial projection 122 of axial projection the 112 and the 2nd guide portion 120 of the 1st guide portion 110, point
Xing Cheng not arrive the inner circumferential side (justified at the bottom of tooth) at the bottom of the tooth than differential ring gear 45 closer to flange 72, i.e. closer to differential mechanism ring tooth
The position of the axle center 45o of wheel 45.Accordingly, can be by axial projection the 112 and the 2nd guide portion 120 of the 1st guide portion 110
Axial projection 122, stirred and the rotation due to differential ring gear 45 by the 1st opening portion of flange part 72
The working oil that 101 and the 2nd opening portion 102 is discharged respectively, effectively to working oil locker room 65 (right side in Fig. 7) side and under
Side guides (spatter to), and can be better protected from this working oil and collide gear box casing 22 (converter cover 221) and spatter
To the 1st opening portion the 101 and the 2nd opening portion 102 side, and again flowed into by the 1st opening portion 102, opening portion the 101 and the 2nd
In differential room 60.
Further, the 1st guide portion the 110 and the 2nd guide portion 120 is respectively provided with and prevents from opening from the 1st opening portion 101 and the 2nd
The working oil flowing down above oral area 102, is flowed in differential room 60 by the 1st opening portion 102, opening portion the 101 and the 2nd
Function.That is, as shown in the dotted arrow of Fig. 7, the working oil that flows down from the top of the 1st opening portion 101, more stored to working oil
Room 65 side accommodates near the upper surface 110u of the 1st guide portion 110 being formed slopely downwards, and is directed to working oil storage
Room 65 side.In addition, as shown in the dotted arrow of Fig. 7, the mainly working oil etc. from the 1st opening portion 101 discharge, from the 2nd opening
The working oil that the top in portion 102 flows down, by more close the 2nd guiding being formed slopely downwards to working oil locker room 65 side
The upper surface 120u in portion 120 accommodates, and is directed to working oil locker room 65 side.
On this basis, in the present embodiment, in rim gear wheel covering part 73 and flange part 72, open to cover the 2nd
The mode of the lower section of oral area 102 is formed with the 3rd guide portion 130.Accordingly, as shown in the dotted arrow of Fig. 7, from the 2nd opening portion 102
The working oil that discharge the lower side edge 73a towards rim gear wheel covering part 73 flow down downwards, is more stored to working oil
Upper surface 130u at the radially protruding part 131 of the 3rd guide portion 130 being formed slopely downwards for room 65 side is held
Receive, and be directed to working oil locker room 65 side.It is as a result, it is possible to be effectively prevented and discharge and towards ring tooth from the 2nd opening portion 102
The working oil that the lower side edge 73a of wheel covering part 73 flows down downwards, by this lower side edge 73a and gear box casing
Gap between 22 flows in differential room 60.
And, the described working oil discharged to working oil locker room 65 side (right side Fig. 7) from the 1st opening portion 101,
With accommodated by the upper surface 110u of the 1st guide portion 110 and guide the working oil of working oil locker room 65 side, be mainly filled portion 74
Receiving portion 742a accommodate and flow in this filling part 74, be equipped with power transmission 20 vehicle travel at flat road
When, it is sent back to working oil locker room 65 by the through hole 741o being formed on bottom 741.So, by by filling part
74 accommodate the working oil that the 1st opening portion 101 is discharged, and are possible to prevent this working oil to flow into differential room 60 from the 2nd opening portion 102
In.On the other hand, the working oil discharged from the 2nd opening portion 102 to working oil locker room 65 side (right side Fig. 7), and by the 2nd
The upper surface 130u of the upper surface 120u of guide portion 120 and the 3rd guide portion 130 accommodates and guides working oil locker room 65 side
The working oil on (right side in Fig. 7), then be directly sent back to working oil locker room 65.
So, in the power transmission 20 of present embodiment, can be well by interior for differential room 60 work flowing into
Oil is discharged to working oil locker room 65 by the 1st opening portion 102, opening portion the 101 and the 2nd, and also can be effectively prevented work
Make oil to be flowed in differential room 60 by the 1st opening portion 102, opening portion the 101 and the 2nd.Therefore, it can be effectively prevented work
Oil is trapped in differential room 60, can reduce the rotational resistance (stirring resistance) of differential ring gear 45 further.
In the present embodiment, the present invention is suitable as that there is differential covering part the 71st, flange part 72 and rim gear wheel
The storage dish 70 of the divided parts of covering part 73, but, it is not limited to this, present invention may apply to the division of arbitrary shape
Parts, as long as it is a part of rim gear wheel covering part 73 having and covering differential ring gear 45 and can divide differential room
60 and the parts of working oil locker room 65.In addition, make the 1st opening portion 102, opening portion the 101 and the 2nd cover across rim gear wheel
Cap 73 and flange part 72 are formed, but the 1st opening portion 102, opening portion the 101 and the 2nd also can be made to be formed only in rim gear wheel
Covering part 73.In such a case, it is possible to omit axial projection the 112nd, from the 1st guide portion the 110 and the 2nd guide portion 120
122.In addition, the upper surface 120u of the upper surface 110u of the 1st guide portion 110 and the 2nd guide portion 120 need not be more to
Working oil locker room 65 side is close to be tilted downwards.Further, on flange part 72 and rim gear wheel covering part 73, opening portion
And along this opening portion upper side edge edge extend guide portion at least form one, it is also possible to respectively formation 3 with
On.
As described above, the power transmission of the present invention has: differential ring gear, itself and acceptance are by variator mistake
The driver pinion engagement of the power coming；Differential gear, it is connected with described differential ring gear；Housing, its receipts fill described difference
Speed device rim gear wheel and described differential gear；Divided parts, it will be divided in described housing for configuring described differential mechanism ring tooth
The differential room of wheel and described differential gear and for storing the working oil locker room of working oil, it is characterised in that also there is ring
Gear covering part, it covers a part for the outer surface of described differential ring gear, and has: opening portion, and it is for will be by
It is outdoor that the working oil that described differential ring gear stirs is discharged to described differential；Guide portion, it is along the upside of described opening portion
Edge extends, and prominent to the radial outside of described differential ring gear from outer surface, and described differential ring gear is oblique
Gear, it is configured that when rotating to main direction of rotation, by working oil indoor for described differential to described working oil locker room side
Stirring sideling, the lower surface of described guide portion is formed as, and more tilts more upward to described working oil locker room side is close.
That is, in the power transmission of the present invention, when differential ring gear rotates to main direction of rotation, due to differential
The working oil rotating differential indoor of device rim gear wheel towards working oil locker room skew back to be stirred, and is covered by rim gear wheel
The opening portion in portion is to the outdoor discharge of differential.Then, a part for the working oil discharged by opening portion, upper with along this opening portion
The lower surface collision of lateral edge portion extension and the radially projecting guide portion from outer surface to differential ring gear, and drawn
Guide working oil locker room side.Now, owing to the lower surface of guide portion is with more close more upward to working oil locker room side
The mode tilting, i.e. with to the rotation due to differential ring gear and the identical side in the direction of dispersing of working oil that stirred
Being formed to the mode tilting, the working oil that therefore, it can make to collide the lower surface of this guide portion does not flow to underface, and makes it
Spatter to working oil locker room side.Itself as a result, it is possible to be effectively prevented the lower surface colliding guide portion working oil flow to just under
Side, flows into differential indoor again from opening portion.Therefore, in the power transmission of the present invention, can be used for configuring by division
The differential room of differential ring gear and differential gear and for storing the divided parts of the working oil locker room of working oil, comes more
Prevent well the indoor delay working oil of differential.
In addition, the tooth of described differential ring gear can be formed as, observe from described opening portion to described radial direction, more to institute
State working oil locker room side near tilting downwards.
Further, the upper surface of described guide portion also can be more to incline downwards to described working oil locker room side is close
Oblique mode is formed.Accordingly, the working oil that can flow down the top of the opening portion from rim gear wheel covering part, passes through guide portion
Upper surface guide to working oil locker room side, such that it is able to be better protected from this working oil, flow into differential from opening portion indoor.
In addition, described rim gear wheel covering part can be integrally formed with described divided parts.But, rim gear wheel covering part also may be used
To be formed with divided parts split, for example, can extend out from housing.
Further, described divided parts also can have: differential covering part, and it covers a part for described differential gear；Convex
Edge, its start from one end of the described differential ring gear side of described differential covering part to described radial outside extend, and
Form described rim gear wheel covering part at peripheral part, described working oil locker room also can be divided in described differential covering part and
Between described flange part and described housing, described opening portion also can be with across described rim gear wheel covering part and described flange part
Mode formed, described guide portion also can have ledge, and this ledge is along described in forming on described flange part
The described upper side edge edge of opening portion, extends to than the axle closer to this differential ring gear at the bottom of the tooth of described differential ring gear
The position of the heart, and axially dashing forward from the surface of the described working oil locker room side of described flange part to described differential ring gear
Go out.
Accordingly, can preferably by the rotation due to differential ring gear by working oil locker room side, i.e. flange part
Skew back the indoor working oil of the differential stirring, and is discharged by the opening portion being formed on differential covering part and flange part.In addition,
Along the upper side edge edge formation guide portion of the opening portion at flange part, this guide portion extends to ratio at the bottom of the tooth of differential ring gear
Closer to the position in the axle center of this differential ring gear, the rotation due to differential ring gear can be stirred accordingly and by
The working oil that opening portion at flange part is discharged, is guided to working oil locker room effectively by guide portion.
In addition, described rim gear wheel covering part also can include, with the level with the axle center by described differential ring gear
The described opening portion that the mode that face intersects is formed.
Then, the present invention is not limited by described embodiment, can carry out various suitable in the range of the extension of the present invention
Suitable change.Further, the embodiment of described invention, a specific embodiment party of simply described in content of the invention invention
Formula, it does not limit the invention key element described in content of the invention.
The possibility industrially applied
The present invention can be in middle application such as the manufacturing industry of power transmission.
Claims (6)
1. a power transmission, has: differential ring gear, itself and the driver pinion transmitting the power from speed changer
Engagement；Differential gear, it is connected with described differential ring gear；Housing, its receipts fill described differential ring gear and described differential
Gear；Divided parts, it will be divided in described housing for configuring described differential ring gear and described differential gear
Differential room and for storing the working oil locker room of working oil, it is characterised in that
Having rim gear wheel covering part, this rim gear wheel covering part covers a part for the outer surface of described differential ring gear, and
Having: opening portion, it is outdoor for the working oil being stirred by described differential ring gear is discharged to described differential；Guide portion,
It extends along the upper edge of described opening portion, and from described outer surface to the radial outside of described differential ring gear
It is prominent,
Described differential ring gear is helical gear, and this helical gear is configured to: when rotating to main direction of rotation by described differential
Indoor working oil rolls to described working oil locker room and tiltedly stirs,
The lower surface of described guide portion is formed: is more close to described working oil locker room side and tilts more upward.
2. power transmission according to claim 1, it is characterised in that
The tooth of described differential gear is formed: is more close to described working oil when observing to described radial direction from described opening portion and deposits
Storage chamber side tilts downwards.
3. power transmission according to claim 1 and 2, it is characterised in that
The upper surface of described guide portion is formed: is more close to described working oil locker room side and tilts downwards.
4. the power transmission according to any one in claims 1 to 3, it is characterised in that
Described rim gear wheel covering part and described divided parts are integrally formed.
5. power transmission according to claim 4, it is characterised in that
Described divided parts has: differential covering part, and it covers a part for described differential gear；Flange part, it is from described difference
One end of the described differential ring gear side of speed covering part starts to extend to described radial outside, and is formed described at peripheral part
Rim gear wheel covering part,
Described working oil locker room is divided between described differential covering part and described flange part and described housing,
Described opening portion is formed: across described rim gear wheel covering part and described flange part,
Described guide portion has ledge, this ledge along the described opening portion being formed at described flange part described on
Lateral edge portion and extend to than the position in axle center closer to described differential ring gear at the bottom of the tooth of described differential ring gear, and
And axially projecting from the surface of the described working oil locker room side of described flange part to described differential ring gear.
6. the power transmission according to any one in Claims 1 to 5, it is characterised in that
Described rim gear wheel covering part includes described opening portion, and this opening portion is formed: with by described differential ring gear
The horizontal plane in axle center intersects.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-066370 | 2014-03-27 | ||
| JP2014066370A JP6187353B2 (en) | 2014-03-27 | 2014-03-27 | Power transmission device |
| PCT/JP2015/058163 WO2015146760A1 (en) | 2014-03-27 | 2015-03-19 | Power transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106104089A true CN106104089A (en) | 2016-11-09 |
| CN106104089B CN106104089B (en) | 2018-07-10 |
Family
ID=54195281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580013853.1A Active CN106104089B (en) | 2014-03-27 | 2015-03-19 | Power transmission |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9903465B2 (en) |
| JP (1) | JP6187353B2 (en) |
| CN (1) | CN106104089B (en) |
| WO (1) | WO2015146760A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131442A (en) * | 2016-12-01 | 2018-06-08 | 博格华纳公司 | The passive lubricating system driven for the concentric gear of electric vehicle |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6188616B2 (en) * | 2014-03-27 | 2017-08-30 | アイシン・エィ・ダブリュ株式会社 | Power transmission device |
| JP6523612B2 (en) * | 2014-03-27 | 2019-06-05 | アイシン・エィ・ダブリュ株式会社 | Power transmission |
| JP6490559B2 (en) * | 2015-10-23 | 2019-03-27 | 本田技研工業株式会社 | Power transmission device |
| JP6423403B2 (en) * | 2016-10-14 | 2018-11-14 | トヨタ自動車株式会社 | Oil passage structure of power transmission device |
| JP6477656B2 (en) | 2016-10-14 | 2019-03-06 | トヨタ自動車株式会社 | Oil passage structure of power transmission device |
| JP6442559B2 (en) * | 2017-05-19 | 2018-12-19 | 本田技研工業株式会社 | Power transmission device |
| JP2019007522A (en) * | 2017-06-22 | 2019-01-17 | 新日鐵住金株式会社 | Railroad vehicle gear device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106104089B (en) | 2018-07-10 |
| WO2015146760A1 (en) | 2015-10-01 |
| US9903465B2 (en) | 2018-02-27 |
| JP2015190499A (en) | 2015-11-02 |
| JP6187353B2 (en) | 2017-08-30 |
| US20170009872A1 (en) | 2017-01-12 |
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